Three school children have fallen through a window from the top deck of a bus in Greater Manchester, police have said.

A large emergency response attended following the incident on Bolton Road in Ashton-in-Makerfield at about 16:00 GMT.

The children have “potentially serious injuries” but they not thought to be life-threatening, Greater Manchester Police said.

An investigation was in the early stages but Inspector Simon Barrie said it “appears to be an unfortunate accident”.